| Abstract
| - We have investigated the adsorption of a series of primary, secondary, and tertiary amides including formamide,N-methylformamide, N-methylacetamide, and N,N-dimethylacetamide on the Ge(100)-2×1 surface usingmultiple internal reflection Fourier transform infrared spectroscopy and density functional theory. At 310 K,primary and secondary amides were observed to form thermodynamically favored N−H dissociation structureswith interdimer interactions as well as kinetically favored oxygen dative-bonded structures. The relative surfaceproduct distributions could be controlled thermally. Dative-bonded adducts were isolated by exposing theamides to the surface at 240 K, whereas N−H dissociation products were formed by annealing to 450 K.While the acetamides could potentially form “-ene” type products, such products were not observed andinstead the acetamides exhibited the same reactivity pattern as the formamides in this study.
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